Uno sceriffo extraterrestre... poco extra e molto terrestre

Bud Spencer

Sheriff Hall

Raimund Harmstorf

Captain Briggs

Cary Guffey

H7-25

Joe Bugner

Brennan

Carlo Reali

Turner

Luigi Bonos

Allen

Harold E. Finch

Air Force General

Dino Emanuelli

Giancarlo Bastianoni

Soldier

Giovanni Cianfriglia

Soldier